July 5, 2022 The Seinfeld show first aired on TV on this day in 1989. Who do you think was the best supporting character?Frank Costanza (75.00%)Newman (0.00%)Kenny Bania (0.00%)J Peterman (0.00%)Uncle Leo (0.00%)Jackie Chiles (0.00%)David Puddy (0.00%)Other (25.00%)Previous Polls